five years

Simply so, How do you know if you have a bad thermocouple?

If you can‘t get the flame to light at all, and youre sure the gas is on, there’s probably an obstruction in the pilot tube. If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that’s the sign of a thermocouple malfunction.

What causes water heater pilot to go out? Usually, a problem with the thermocouple causes the pilot light to go out. The thermocouple is the small copper rod that the pilot light hits. The thermocouple’s job is to shut a gas safety valve if the pilot light goes out. That’s important because gas is always being supplied to the pilot to keep the flame lit.


30 Related Questions Answers Found

 

Can you replace a thermocouple yourself?

If you are set on replacing the thermocouple yourself, here are a few things to keep in mind. Locate the thermocouple next to the pilot light and disconnect the unit by removing the copper lead. Unscrew the gas line connection nut AND bracket nut holding the thermocouple in place.

Why does my pilot light go out when I release the pilot light knob?

The most likely of those is that the thermocouple needs to be replaced. The button you press to light the pilot bypasses the thermocouple. When you release the button, the thermocouple ensures that unburned gas doesn’t get released by shutting off the gas when it’s not heated by the burning pilot light.

Are thermocouples universal?

Universal Thermocouples. Universal thermocouples, as the name implies work on most water heaters. They are available online and in home supply stores for a reasonable cost. The length and the thread type are the two concerns when purchasing one.

Is it safe to replace thermocouple?

It is a safety device that shuts off the gas if the pilot light goes out or the electric igniter fails. If the pilot light won’t stay lit, the thermocouple may be faulty and should be adjusted or replaced. If the pilot won’t stay lit, replace the thermocouple with a new one of the same type.

Can you clean a thermocouple?

If the Thermocouple is faulty it will cause the unit to shut down. How to clean? Remove Thermocouple from pilot assembly, using steel wool or emery cloth to lightly clean the tip removing any soot or build up that might have accorded due to an improper pilot flame.

How much should a plumber charge to replace a thermocouple?

Thermocouple Replacement – $20-$150

Calling a professional plumber to install a new thermocouple should only be up to $150. If you do the work yourself, you will only pay the price of the part which is about $20.

How long do thermocouples last?

Thermocouples can last several years, but they don’t typically last as long as the furnace itself. If the pilot remains lit, but the main furnace doesn’t stay lit, it’s time to replace the thermocouple. Replacement thermocouples are in stock at most hardware and home improvement stores.

Can a water heater last 20 years?

How do you test a thermocouple?

Steps
  1. Locate the pilot light controls on the gas valve.
  2. Turn the pilot light on for 30 seconds.
  3. Release the button to see if the pilot light goes out.
  4. Turn off the gas supply to test the thermocouple again.
  5. Count to 20 and wait for the pilot light to go out.
  6. Listen for clicking near the gas valve.

Does Home Depot sell thermocouple?

Thermocouple/Thermopile – The Home Depot.

Is Rheem or AO Smith better?

Rheem is a good, mid-level water heater brand that’s not too costly. Its reputation for manufacturing durable, reliable water heaters makes it a good choice for most homes. Overall, AO Smith is probably the better choice for gas water heaters, but only by a fraction.

What causes a thermocouple to fail?

Changes in temperature can cause regular expansion and contraction in metal, which will cause thermocouples to weaken over time. After enough time, metal fatigue can cause a thermocouple to break. If thermocouples start to give out unusual readings, it may be suffering from metal fatigue.

How much does Lowes charge for water heater installation?

$ 325 basic installation fee on top of the $ 40 estimate fee.

How do you know if you have a bad thermocouple?

If you can‘t get the flame to light at all, and youre sure the gas is on, there’s probably an obstruction in the pilot tube. If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that’s the sign of a thermocouple malfunction.

Does Lowes install water heater?

For example, a thermocouple used at glass temperatures may last for over 1000 firings where the same thermocouple used at cone 10 may only last for 20 firings. The life of the thermocouple will also be affected by the gauge of thermocouple, and gases it is exposed to from clay and glazes.

Does Lowes install water heater?

The thermocouple looks like a piece of metal tubing smaller than a soda straw. To find it, first locate the gas control box. This is the box that the main gas line enters, where you turn the gas on in the furnace. The other end of the thermocouple sits in the flame of the pilot light.

Can you install your own water heater?

Can you replace a water heater yourself? The short answer is yes, most of the time. If there needs to be electrical modifications, many building jurisdictions will allow you to do the modifications yourself if its your own home, but a few jurisdictions may require a license electrician to do the work.

How do you remove a thermocouple?

How to Replace a Water Heater’s Thermocouple
  1. Turn off the gas supply.
  2. Unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve.
  3. Detach the thermocouple from the burner.
  4. Install the new one the same way that you removed the old one.
  5. Turn the gas back on and follow the lighting instructions on the water heater.

Does the length of a thermocouple matter?

The length of a thermocouple has no effect on its measurement accuracy or its ability to transfer the signal to the instrument. In other words, thermocouples do not experience β€œvoltage drops” or power loss along its length as a high current power line might possess.

How many years does a water heater last?

8 to 12 years

What would cause pilot light to go out?

The thermocouple looks like a piece of metal tubing smaller than a soda straw. To find it, first locate the gas control box. This is the box that the main gas line enters, where you turn the gas on in the furnace. The other end of the thermocouple sits in the flame of the pilot light.

Should I replace my water heater before it fails?

If the tank rusts through, it could fail catastrophically and flood your home. You can avoid this disaster by replacing your water heater before it fails. A new water heater could lower your utility bills: You must invest in a new water heater, but it will start paying your back immediately in lower energy bills.

When should you replace your water heater?

Generally, most water heaters that are more than 10 years old should be considered for replacement. If your water heater is in a location that will not cause damage if there is a leak, you can wait until it develops a leak before replacing it, but that really is not recommended.

When should you replace your water heater?

A: The cost to install a water heater varies from project to project based on individual needs. To get a personalized quote, please fill out the form above or call 1-877-GO-LOWES. Q: Does Lowe’s offer an extended warranty? A: Yes, Lowe’s offers water heater protection plans.

Do you need a permit to replace a water heater?

The simple answer is the permit is required so that an inspection can be done to make sure the water heater is installed properly, and that it does not create a hazard to the building occupants. The answer is most likely, β€œYes, a permit is required.”

Can I replace a thermocouple myself?

Burner assembly

1 cause of pilot lights that won’t stay lit is a worn-out thermocouple. It’s easy to replace and a new one costs $5 to $10. Rather than trying to unfasten the thermocouple inside the water heater’s burning chamber, it’s easier to remove the whole burner and thermocouple assembly.

Does cleaning a thermocouple help?

Remove Thermocouple from pilot assembly, using steel wool or emery cloth to lightly clean the tip removing any soot or build up that might have accorded due to an improper pilot flame. Using an eraser from a pencil; clean the threads of the nut that connects the Thermocouple to the control valve and then re-tighten.

Should a thermocouple be in the flame?

Typically the thermocouple sensor is mounted right in the flame of the pilot light on gas fired heating equipment. But not all of these systems use a thermocouple. Some gas fired heating equipment relies on an electronic ignition to ignite the flame. Those devices generally will not use a thermocouple.

What does a thermocouple look like?

Burner assembly

1 cause of pilot lights that won’t stay lit is a worn-out thermocouple. It’s easy to replace and a new one costs $5 to $10. Rather than trying to unfasten the thermocouple inside the water heater’s burning chamber, it’s easier to remove the whole burner and thermocouple assembly.

Can you bypass a thermocouple?

Bypassing the thermocouple would make it no more dangerous than any propane grill. It’s not going to make it explode. The only thing it would prevent is losing a tank of propane into the atmosphere if the flame happened to go out because the valve wouldnt close.

How long should a thermopile last?

The thermocouple looks like a piece of metal tubing smaller than a soda straw. To find it, first locate the gas control box. This is the box that the main gas line enters, where you turn the gas on in the furnace. The other end of the thermocouple sits in the flame of the pilot light.